PHYSA. 



145 



22. PHYSA COOPERII, Tryon. 



Plate 6. fig. 14. 



Shell small- ovate, rather solid, not inHated ; 

 body whorl somewhat flattened above the 

 middle, and nearly the entire length of the 

 shell; spire very short, eroded, suture not 

 well impressed; surface roughly striate; 

 columella nearly straight, without fold ; lip 

 bordered internally with red. 



Length 8, diam. 4 '5 mill. 



N. E. California. 



It can scarcely be mistaken for any other 

 species, being peculiar for its small size, solid- 

 ity and heavy deposit within the labrum. 



(61) 



